
It claims that the happiness you experience (H) is determined by your biological set point (S) plus the conditions of your life (C) plus the voluntary activities (V) that you do. It follows then that it is necessary to find out what kinds of C and V can push H up to the top of your potential range and as a professional psychologist he advocates scientific methods to do this - so far so good!
He then goes on to claim that since there is scientific evidence that there are some/many conditions (C) and voluntary activities (V) that effect your happiness then Buddha and Epictetus were wrong because they said the way is to look within only. He then goes on to identify some conditions (C) that effect your quality of life such as "commuting, noise, lack of control, shame, relationships and finding flow".
Having then claimed that Buddha said "happiness comes only from within" he suggests improving Buddha's teachings by saying, "Happiness comes from within, and happiness comes from without". He continues that "the Western ideal of action, striving, and passionate attachment is not as misguided as Buddhism suggests". He then says "it is worth striving to get right relationships between yourself and others, between yourself and work, and between yourself and something larger than yourself".

